Ancient Chinese cave drawings could help scientists predict droughts

Ancient Chinese Cave Writings Could Predict Droughts

Near the Hanjiang River in central China, amid the lush, pine-covered Qinling Mountains that once were dotted with Daoist shrines and where giant pandas now roam, is the Dayu Cave. Its entrance is small, only a few meters high and wide. Inside, a matrix of passageways and chambers branch off from a main tunnel that runs…